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Cutaway Sukhoi I-107 / Su-5, the fighter developed by the Soviets before the entry into service of the Messerschmitt jet fighter the Me-262, whose performance far exceeded any Soviet fighter, in the absence of development of jet engines decided to implement a "hybrid" fighter that was the combination of the proven Klimov VK-107A engine with a transmission box and a shaft that moved the Khalschevnikov compressor forcing air through the cooling radiator and then passing through 7 burners creating a unit Propeller type "Thermoreactor" which became known as VDRK whose combined power was equivalent to 2800 hp, the thrust of the propulsion unit was 300 Kgs to be used for approximately 3 minutes during combat, the rest of the time only the alternative engine would be used, would be armed with two 12.7 mm Berezin UB machine guns and a 23 mm Nudelman-Suranov NS23 cannon firing through the propeller hub, its wings were per Fil laminar, it was expected to reach about 950 km / h being very optimistic in reality just if it reached 793 km / h, it was tested in flight while its Klimov VK-107A engine lasted, being neglected any further development after the arrival of real jet fighters thanks to access to the technology of the Nazi engines Jumo 004 and BMW-003 that fell into the hands of the Soviets who, with the support of engineers, created copies and installed them in the first Yak-15 and MiG-fighters 9, the other fighter that shared this type of "Hybrid" Temorreactor engine was the MiG I-250 later known as MiG-13 which is said to have built several dozen units and that they served with the Soviet Navy ( Thing that today is doubted in light of new documentation) modification recreated by Motocar.